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Finding the Fourth Proportional to 518,063.04, 776,897.70 and 247,913.88

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Solution

The fourth proportional to 518,063.04, 776,897.70 and 247,913.88 is: 371,776.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,063.04 : 776,897.70 = 247,913.88 : x
  2. Step 2: Convert to fraction form
    518,063.04/776,897.70 = 247,913.88/x
  3. Step 3: Cross multiply
    518,063.04x = 776,897.70 × 247,913.88
  4. Step 4: Simplify right side
    518,063.04x = 192,603,723,170.08
  5. Step 5: Solve for x
    x = 192,603,723,170.08/518,063.04
  6. Step 6: Final answer
    x = 371,776.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.